TRANSMISSION TAILSHAFT IDENTIFICATION

Casting # / Picture / Application
DKT /
/ 1964-65 Falcon
1964-73 Mustang, Cougar
1966-68 Fairlane, Cyclone, Ranchero, Torino 289, 302, 390
1966-69 Falcon 289, 302
1966-69 Mustang, Cougar 390
1967 up Fairlane, Cyclone 427, 428
1968-69 Mustang 428, 429
14" length, 28 or 31 spline
C4AR-7A040 A / / 1964-67 Galaxie 289, 390
17" length, 28 spline
C4DR-7A040 A / / 1964-65 Falcon
front shifter mounting holes drilled and tapped.
14" length, 25 or 28 spline
C4DR-7A040 A / / 1964-73 Mustang, Cougar
rear shifter mounting holes drilled and tapped and front lower shifter mounting pads milled off.
14" length, 25 or 28 spline
C4OR-7A040 A / / 1964 and 65 Fairlane, Tiger, Grifit, TVR
15 1/2" length, 28 spline
C4ZR-7A040-A / / 1964-73 Mustang, Cougar 289, 302, 351 engines
14" length, 25 or 28 spline
RF-C6AR-7A040-B / / 1966-67 Galaxie 427, 428
17" length, 31 spline
C6OR-7A040-C
C7OR-7A040-A / / 1966-68 Fairlane, Cyclone, Ranchero, Torino 289, 302, 390
1966-69 Falcon 289, 302
1966-69 Mustang, Cougar 390
14" length, 28 spline
C6OR-7A040-C
C7OR-7A040-A / / 1967 up Fairlane, Cyclone 427, 428
1968-69 Mustang 428, 429
14" length, 31 spline
RF-C8AR-7A040-B / / 1968-69 LTD, Galaxie, Custom 390
17" length, 28 spline
RF-C9AR-7A040A / / 1969 Galaxie, Custom 429
17" length, 31 spline
C9OR-7A040-A / / 1969 up Cyclone, Torino, Ranchero 302. 428, 429
17" length, 31 spline
DOZR-7A040-A / / 3 front shifter mounting holes drilled and tapped.
Same as shifter location as C6O & C7O
14" length, 28 spline
DOZR-7A040-A / / 3 rear shifter mounting holes drilled and tapped.
70-71 Mustang, Cougar 428, 429, Boss 429
14" length, 31 spline

TRANSMISSION CASE IDENTIFICATION

4 speed Toploader maincases came in two bolt patterns:
The case on the right is a 64 narrow bolt pattern 4 hole case.The case on the left is a 65-73 wide bolt pattern 8 hole case. The inner bolt pattern on the 8 hole case is the same pattern as the early narrow case.
RF C4AR-7003-A:
1964 casting used in 64. Narrow 4 hole case.
RF C5AR-7006-D:
1965 casting used from 65-67. Wide 8 hole case.
RF C8AR-7006-D:
1968 casting used from 68-71. Wide 8 hole case.
D2AR-7006-CA:
1972 casting used in late 71. Wide 8 hole case.
RF-D2AR-7006-CB:
1972 casting used in 72 - 73. Wide 8 hole case.
XAA 12512 / ALCOA 2:
This is a factory aluminum case used in 69-70 in factory road race cars to help lose a little weight. A very small number of these cases were made, maybe 10. This case had the HEH HG White Stripe gear ratios in it.

On production hi-performance cars, a partial VIN was stamped on the maincase of the transmission on the drivers side upper ear of the maincase. These are usually found on Boss, Cobra Jet, Super Conra Jet, Mach 1, etc. Some of the early K code Mustang Toploaders were stamped on the bottom center of the maincase with the complete VIN.

BELLHOUSING IDENTIFCATION

Year / Application / Casting Number
1963-64 / 289 / C3AA-6394-C
1963-64 / 390-406-427 / C3AA-6394-A
1965 / 289 5 bolt block / C3AA-6394-C
1965-67 / 289 6 bolt block / C5DA-6394-A
1965-67 / 390-427-428 (11" clutch) / C5AA-6394-A
1966-69 / 390 GT (11 1/2" clutch) / C6OA-6394-B and D
1968 / 289-302 / C8AA-6394-A (aluminum)
1968-69 / 302 / C8AA-6394-B (cast iron)
1968-69 / 390 GT - 428 CJ (11 1/2" clutch) / C8OA-6394-A
1968-69 / 428 CJ-SCJ (after 2-15-68) / C8OA-6394-A
1969-73 / 302 / C5AA-6394-B
1969-70 / 351 / C5TA-6394-A
1969 / 390-428 (11" clutch) / C9AA-6394-C
1969 / 428 CJ-SCJ / C6OA-6394-B and D
1969-70 / 429 / C9AA-6394-D
1970 / 428 CJ-SCJ / C6OZ-6392-C
1970-71 / 429 Boss (after 2-2-70) / C9AA-6394-E
1971 / 351 / D1TE-6394-AA
1972-73 / 351 / D1TA-6394-AA

Bellhousings that will be used with a Toploader must measure 6 1/4" deep. If it measures 6 3/4" deep it is a truck bellhousing and should not be used.

TRANSMISSION INFORMATION

PARTS AND TECHNCIAL INFORMATION / SUPPORT:

TOPLOADER HEAVEN

17970 MEMORIAL ROAD

WILSON, OKLAHOMA73463

MARK HAMMONS

580-229-1779

Email:

THE GUY WHO KNOWS TOP LOADER SHIFTERS AND HAS PARTS:

BILL HEELEY

3621 MT. OLNEY ROAD

OLNEY, MARYLAND20832

301-774-6710